Insecticide and fungicide



Patented Mar. 22,,

nmmson s. norn'ron', or 0am.

ASSIGNMENTS, 'ro n-z-war e CALIFORNIA.

No Drawing.

tear.

M D, CALIFORNIA, ASSIGNOR, BY DIRECT AND MESNE 0., OF OAKLAND, CALIFORNIA, A. COEPORATIQN 0F rnsn'orrcrnn AND rnneromn.

a lication filed July as,

invention has for its object an insecticide and fungicide preferably in dry or in paste form which may water and spread on trees be mixed with or shrubs or painted about the bases of treesto band them, and to kill the insect andfungus life and as a protectionagainst the migration-of insects.

My insecticide has the advantage of cheapness and efficiency and may be advantageously transported because of' its highly concentrated nature. When employed in sprays it may be diluted with sub stantially 800 parts of water.

because of the stability of and the excess of sulphur.

stable mixture the polysulfides This results in longer life effectiveness of the spray as It is a very and increased the oxidation is slower when on the leaf, hence it kills later hatches as well as the time of spraying.

A further object is commercial insecticide with the hardestirrigation water.

mature insects at the the production of a suitable for mixing The soap powder ingredient mentioned below is employed to give maximum spreading and holding qualities to the spray and at. the

same time to act as a water softener.

necessary tokeep the spray is no agitation There mixed when used for orchard purposes as the only preci itate formed is that from the impurities in the water used.

The mixture of my invention consists primarily of sodium sulfide or polysul-fides that are water soluble weight of water when hot. I

in about 30% of their prefer to employ the sodium sulfide which as obtained incommercial form to 40 percent water.

ing point of substantially 120 which I melt and add erably, in powder will average about 35. This then has a meltcentigrade, thereto sulphur prefform and in suflicient proportions to saturate the metallic radicle present and placing sulfur-sulfide system i fur and sulfide react, polysulfides of the metal use as into equilibrium the The sulseries of for exn the bath.

formin a ample Na S Na S Na S eta, until saturatiomin sulfur is reached for this particular system.

This reaction heats up the bath so that if the sulfur is added slowly with agitation there is enough heat bath active until all e liberated to keep the f the sulfur is added.

agitation during the 192s. Serial No. esaaoa The temperature of the mixture should be kept below 225 (3., the ignition point of sulfur.

Should sulfur be added iii-excess it immediately forms a molten scum on top of the bath'and may be skimmed off and used in the next batch. A small quantity of water may now be added to cool the bath and to solidify the sulfur and give the right consistency to the finished paste.

Although I have directed particular attention to the polysulfides there will of course be formed other substances in the mixture, as the thio-sulfate of soda due to oxygen action during the reaction, these however do not detract from the desired qualities of the final product.

The mixture which I have found partlicularly efiective'is prepared as follows; to

00 (62%) -melted in an iron container I add 30 to 4:0 pounds sulfur in small quantities while stirring. During the addition of the pounds of commercial sodium sulfide sulfur'the fire is turned off under the vat,

add about 60 mixing to a smooth paste and if desired tobacco 'To use the above as an insecticide, as for example in spraying of trees I mix about 8 poundswith gallons of water. The finished paste is hygroscopic and should be kept in sealed drums or containers until used.

If it is desired to employ the insecticide as a powder, the addition of water to the sulfur and sodium sulfide mixture as above described is omitted, and the product may then be readil powdered. The powder should be mixe with soap so that the proportion of olysulfides to soap is about 1 to 4; and to t 's 2% by weight of dr copper sulfate powder or other pow ers,

stantially 4%.

' sulphur to form further size of V cation and by powdered tobacco or nicotine sulfate essence may be added. The mass should then be powdered and screened to uniform g'ain, which is readily soluble in water. hen so prepared it may be employed either as a powder or. in solution as desired.

In employing tobacco extract or nicotine sulfate, I prefer to use a water solution of the nicotine as part of the water of saponifiso doing I get a thorough amount of nicotine sulfate product should then be subemulsion. The in the finished I claim:

1. An insecticide formed of sodium sulphide which is melted and to which is added sulphur to form polysulphides of sodium, the mixture is allowed to partly cool and soap is added to form a paste when cold.

2. An insecticide formed of sodium sulphide which is melted and to which is added polysulphides of sodium, the mixture is allowed to partly cool and soap is aded to form a paste when cold and substantially 2% of copper sulphate.- 3. An insecticide composed of substantially 100 pounds of sodium sulphide, pounds sulphur mixed hot, then cooled and water added to a paste consistency, to which is now added substantially 60 pounds of soap owder.

4. n insecticide composed of substantially 100 pounds of sodium sulphide, 35 pounds sulphur mixed hot, then cooled and water added to a paste consistency, to which is now aded substantially 60 pounds ofsoap.

powder, and substantially 2% sulphate of copper. l v

5. The method of producing a paste like insecticide of soap and poly-sulphides of sodium which consists of adding sulphur to melted sodium sulphide and adding soap powder to form a paste.

6. The method insecticide which consists to sulphide-of sodium I water of crystallization to substantial saturation then partly cooling the mixture and then adding soap until the mixture has a paste consistenc An insecticide material formed, of sodium sulphide which has been melted and to which sulphur has been added to form polysulphide ofsodium and to which soap has been thereafter added.

8. An insecticide material formed of sodium sulphide which has been melted and to which sulphur has been added to form polysulphides of sodium and to which soap as been thereafter added and 2% of copper of adding sulphur sulphate.

9. An insecticide com osed of substan tially 100 pounds of so d pounds of sulphur mixed hot, then cooled and mixed with substantially 60 pounds of soa 1 8. An insecticide composed of substantially 100 pounds of sodium sulphide, 35 pounds of sulphur mixed hot, then cooled and mixed with substantially 60 pounds of soap and substantially 2% of sulphate of copper.

KINNISON S. BOYNTON.

of producing a paste like melted in its ownium sulphide 35 Y 

